So I have figured out that I have this ability to voluntarily manipulate my tensor tympanis. I can 'squeeze' both of my ears (similar to squeezing your eyes shut) to block loud noises if needed. Doing so produces a rumbling sound in my ear and does dampen my hearing to loud sounds. I've heard this isn't too common of an ability, although I thought everyone could do it. The problem with doing this is that I force a lot of excess tension into my ears, bad enough that it seems to set off really loud T along with a bit of hearing loss in the high and low frequencies, even a bit of vertigo. I am very confused, as the tensor tympani is supposed to protect the inner ear, not harm it. It could be a case of TTTS, and my perception of lost hearing is only a result of the TT muscle stretching my eardrum too much, but I really do not know. Any thoughts about this? People with tensor tympani syndrome, are you up for comment?